Patents by Inventor Fumiya Sato
Fumiya Sato has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240092337Abstract: A vehicle control apparatus includes front-wheel and rear-wheel driving systems, and a control system. The front-wheel driving system includes a first travel motor mechanically coupled to a front wheel of a vehicle and a first accumulator electrically coupled to the first travel motor. The rear-wheel driving system includes a second travel motor mechanically coupled to a rear wheel of the vehicle and a second accumulator electrically coupled to the second travel motor. The control system includes one or more processors and one or more memories communicably coupled to the one or more processors, and controls the first and second travel motors. When a difference between an SOC of the first accumulator and an SOC of the second accumulator is greater than a threshold value, the one or more processors change a torque distribution ratio between the first and second travel motors from a reference distribution ratio.Type: ApplicationFiled: September 13, 2023Publication date: March 21, 2024Inventors: Hiroshi KUSANO, Yoshinobu YAMAZAKI, Masami OGURI, Akihiro NABESHIMA, Yoshiyuki JIN, Takeshi YONEDA, Fumiya SATO, Keigo YAMADA, Takumi ARAKI, Shuntaro MIURA
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Patent number: 11919384Abstract: A resin filler tube includes: a tubular body; a flange having a diameter greater than an outer diameter of the tubular body, a thickness greater than a thickness of the tubular body, and a predetermined width in an axial direction, and having a first axial end face forming a weld surface to be welded to an outer circumferential edge of an opening hole of a fuel tank; and a base-end-side reverse tapered portion which connects between an end of the tubular body on the fuel tank side and an end of an outer circumferential surface of the flange on a side opposite to the fuel tank side, and which is reversely tapered so as to increase a diameter toward the flange. The base-end-side reverse tapered portion has an inner diameter that is not less than an inner diameter of the tubular body over an entire range in the axial direction.Type: GrantFiled: December 22, 2020Date of Patent: March 5, 2024Assignees: Sumitomo Riko Company Limited, HONDA MOTOR CO., LTD.Inventors: Fumiya Mizuno, Tomoyuki Fukuyasu, Atsuo Miyajima, Yoshikazu Kaneyasu, Nao Sato, Tsubasa Suzuki
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Publication number: 20230382390Abstract: A vehicle includes a first detector detecting first information related to a condition of a first road surface; a second detector contactlessly detecting second information related to a condition of a second road surface; and a controller controlling a driving force of the vehicle using a friction coefficient estimated based on the first and/or second information. A processor(s) of the controller execute(s) a process including: determining whether the conditions are of a same type based on the first and second information; when the conditions are of different types, controlling the driving force using a friction coefficient estimated based on the second information as a friction coefficient of the second road surface; and based on determining that the conditions are of the same type, controlling the driving force using a friction coefficient estimated based on the first information as the road surface friction coefficient of the second road surface.Type: ApplicationFiled: April 28, 2023Publication date: November 30, 2023Inventors: Fumiya Sato, Yoshinobu Yamazaki, Akihiro Nabeshima, Yoshiyuki Jin, Takeshi Yoneda, Hiroshi Kusano, Keigo Yamada, Takumi Araki, Shuntaro Miura
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Publication number: 20230373295Abstract: A drive system for a four-wheel drive vehicle including a friction brake system includes a first motor and a second motor, a propeller shaft for transmitting power between a front-wheel side and a rear-wheel side, a first differential mechanism configured to divide output torque of the first motor between a left wheel on one side of the front-wheel side and the rear-wheel side and the other side, a second differential mechanism configured to divide output torque of the second motor between a right wheel on the one side and the other side, and a control device for controlling regenerative braking force related to the first motor and the second motor and friction braking force related to the friction brake system. The first and second differential mechanisms are configured such that the ratio of output torque allocated to the front-wheel side is 50% or more.Type: ApplicationFiled: May 8, 2023Publication date: November 23, 2023Inventors: Yoshinobu YAMAZAKI, Masami OGURI, Akihiro Nabeshima, Yoshiyuki JIN, Takeshi YONEDA, Fumiya SATO, Hiroshi KUSANO, Keigo YAMADA, Takumi ARAKI, Shuntaro MIURA
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Publication number: 20230311671Abstract: An electric vehicle includes a motor and a controller. The controller is configured to; based on determining that the electric motor is in the locked state, set a search target torque greater than a value of torque demanded by a driver, and execute a increase of the motor torque up to the set target torque; upon making a determination that the locked state is ceased, store a value of the target torque at a time of making the determination, and execute a decrease of the target torque; and when a second value of the torque demanded by the driver becomes the value of the target torque or more after the decrease of the target torque, set a second value of the target torque in accordance with the second value of the torque demanded by the driver, and drive the electric motor in accordance with the set target torque.Type: ApplicationFiled: March 21, 2023Publication date: October 5, 2023Applicant: SUBARU CORPORATIONInventors: Keigo YAMADA, Yoshinobu YAMAZAKI, Yoshiyuki JIN, Akihiro NABESHIMA, Takeshi YONEDA, Fumiya SATO, Hiroshi KUSANO, Takumi ARAKI, Shuntaro MIURA
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Publication number: 20230294714Abstract: A vehicle drive assist apparatus includes one or more processors and one or more memories. The one or more memories are communicably coupled to the one or more processors. The one or more processors are configured to acquire road condition information of a road where a vehicle is traveling, drive skill information of a driver who drives the vehicle, and drive assist necessity information of the vehicle. The one or more processors are configured to determine which of preset road condition categories applies based on the acquired road condition information. The one or more processors are configured to determine which of preset drive skill categories applies based on the acquired drive skill information. The one or more processors are configured to execute, based on the acquired drive assist necessity information, a drive assist process for the vehicle depending on the determined road condition category and the determined drive skill category.Type: ApplicationFiled: March 2, 2023Publication date: September 21, 2023Applicant: SUBARU CORPORATIONInventors: Fumiya SATO, Tomohiro ABE, Mika SUZUKI, Hiroki MARUMO
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Publication number: 20230294525Abstract: A power distribution apparatus for an electric vehicle includes a power distribution mechanism configured to distribute power output from an electric motor to front and rear wheels, and a controller configured to control the power distribution mechanism. The power distribution mechanism includes a first clutch configured to fix a power distribution ratio during straight traveling to a first distribution ratio at which first power distributed to the rear wheels and second power distributed to the front wheels are nearly same, and a second clutch configured to fix the power distribution ratio during straight traveling to a second distribution ratio at which the first power is larger than the second power. The controller is configured set the second clutch to an engaged state and sets the first clutch to a half-engaged state during regenerative braking.Type: ApplicationFiled: March 3, 2023Publication date: September 21, 2023Applicant: SUBARU CORPORATIONInventors: Yoshinobu YAMAZAKI, Masami OGURI, Akihiro NABESHIMA, Yoshiyuki JIN, Takeshi YONEDA, Fumiya SATO, Hiroshi KUSANO, Keigo YAMADA, Takumi ARAKI, Shuntaro MIURA, Susumu ITO
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Patent number: 11718307Abstract: A vehicle control apparatus to be applied to a vehicle includes a driver state-value detection processor, a road-surface-state detection processor, a threshold setting processor, a dangerous-driving determination processor, and a determination threshold changing processor. The driver state-value detection processor detects a state value of a driver who drives the vehicle. The road-surface-state detection processor detects a road-surface state of a road on which the vehicle is traveling. The threshold setting processor decides, based on the state value, one or more determination thresholds of a state to be determined as occurrence of dangerous driving. The dangerous-driving determination processor determines that the dangerous driving is occurring in a case where the state value is present within a range outside any of the one or more determination thresholds for a predetermined time period or more.Type: GrantFiled: August 12, 2021Date of Patent: August 8, 2023Assignee: SUBARU CORPORATIONInventors: Fumiya Sato, Hideyuki Takao, Yui Ota
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Publication number: 20230185564Abstract: The control device of the vehicle comprises a first non-volatile memory storing software for controlling the vehicle and one or more processors executing the software. The one or more processors determine whether the old software before the update is stored in the second non-volatile memory mounted in the vehicle when the software needs to be returned to the old software before the update, and store the old software from the second non-volatile memory to the first non-volatile memory when the old software is stored in the second non-volatile memory.Type: ApplicationFiled: November 8, 2022Publication date: June 15, 2023Applicant: Toyota Jidosha Kabushiki KaishaInventor: Fumiya Sato
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Publication number: 20230078087Abstract: A road-surface state determination apparatus performing non-contact determination of a state of a road surface includes one or more processors. The one or more processors control a light source emitting each of three near-infrared lights having respective wavelengths different from one another, thereby cause the three near-infrared lights to be applied from the light source onto the road surface, and cause a light reception sensor to receive the three near-infrared lights reflected by the road surface. The one or more processors perform primary determination as to whether a type of the road surface is a snow accumulated state in precedence over other types on the basis of a light reception result obtained by the light reception sensor, and thereafter perform secondary determination as to which one of the other types the type of the road surface is on the basis of the light reception result.Type: ApplicationFiled: August 19, 2022Publication date: March 16, 2023Inventor: Fumiya SATO
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Publication number: 20230073598Abstract: An estimation apparatus performs non-contact estimation of a friction coefficient of a road surface. The estimation apparatus includes at least one processor. The processor determines a state of the road surface and determine which of preset road-surface states the state of the road surface belongs to. The processor performs primary identification of a first range of a friction coefficient corresponding to the determined road-surface state on the basis of friction coefficient information and the determined state of the road surface. The friction coefficient information is sectioned for each of the road-surface states. The processor narrows down a range of the friction coefficient from the first range to a second range on the basis of the identified first range of the friction coefficient, and thereby perform secondary identification of the friction coefficient of the road surface. The second range is narrower than the first range.Type: ApplicationFiled: August 10, 2022Publication date: March 9, 2023Inventor: Fumiya SATO
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Publication number: 20230060112Abstract: A drive assist apparatus configured to set a drive condition of a vehicle based on a risk map generated by giving a risk potential to a risk object that is present around the vehicle, includes one or more processors and one or more memories connected to the one or more processors to be able to communicate with the one or more processors. The one or more processors is configured to execute a process including: obtaining information on a surrounding environment of the vehicle; obtaining information on an external environmental factor that may cause deviation of a drive track of the vehicle; and expanding a setting range of the risk potential of the risk object which is positioned in a direction of the expected deviation based on the information on the external environmental factor.Type: ApplicationFiled: July 27, 2022Publication date: February 23, 2023Inventors: Hiroki MARUMO, Fumiya SATO, Mika SUZUKI, Tomohiro ABE
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Publication number: 20230034419Abstract: A vehicle control apparatus includes one or more processors. The one or more processors execute determination as to whether a driving state of the vehicle involves difficulty in continuing the automatic driving. In a case where the driving state is determined as involving difficulty in continuing the automatic driving, the one or more processors execute determination on a difficulty level of operation authority transfer from the automatic driving to the manual driving on the basis of information regarding a surrounding environment of the vehicle, information regarding a driving skill of a driver, and information regarding an experience level of the driver of the operation authority transfer. The one or more processors execute setting of a driving-state condition for executing the operation authority transfer in accordance with the difficulty level. The one or more processors execute the operation authority transfer in a case where the driving-state condition is satisfied.Type: ApplicationFiled: July 15, 2022Publication date: February 2, 2023Inventors: Tomohiro ABE, Fumiya SATO, Mika SUZUKI, Hiroki MARUMO
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Publication number: 20220063634Abstract: A vehicle control apparatus to be applied to a vehicle includes a driver state-value detection processor, a road-surface-state detection processor, a threshold setting processor, a dangerous-driving determination processor, and a determination threshold changing processor. The driver state-value detection processor detects a state value of a driver who drives the vehicle. The road-surface-state detection processor detects a road-surface state of a road on which the vehicle is traveling. The threshold setting processor decides, based on the state value, one or more determination thresholds of a state to be determined as occurrence of dangerous driving. The dangerous-driving determination processor determines that the dangerous driving is occurring in a case where the state value is present within a range outside any of the one or more determination thresholds for a predetermined time period or more.Type: ApplicationFiled: August 12, 2021Publication date: March 3, 2022Applicant: SUBARU CORPORATIONInventors: Fumiya SATO, Hideyuki TAKAO, Yui OTA
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Patent number: 11077835Abstract: A control apparatus for a vehicle includes: a first road surface friction coefficient calculator; a second road surface friction coefficient calculator; and a braking and driving force controller. The first road surface friction coefficient calculator calculates a first road surface friction coefficient that is a friction coefficient of a road surface in a contact with a wheel. The second road surface friction coefficient calculator calculates a second road surface friction coefficient on a basis of a detection value from a contactless sensor that contactlessly detects a road surface state.Type: GrantFiled: January 7, 2019Date of Patent: August 3, 2021Assignee: SUBARU CORPORATIONInventors: Yuya Maeda, Noeru Sato, Fumiya Sato
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Publication number: 20210220093Abstract: To provide a more convenient row of connected artificial teeth which is used for implantation, in this row of connected artificial teeth, a plurality of artificial teeth (11) that are formed of resin are integrally connected, an occlusal face (11a) is formed over one face of each of the artificial teeth, and a hole (12) is provided for at least one of the artificial teeth on an opposite side of the occlusal face, into the hole a coupling member with an artificial tooth root being to be inserted.Type: ApplicationFiled: June 30, 2017Publication date: July 22, 2021Applicant: GC CORPORATIONInventor: Fumiya SATO
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Patent number: 11059472Abstract: A control device of a vehicle includes a motor controller. The motor controller is capable of controlling a motor configured to generate a driving force of the vehicle, and switching between a first driving mode for driving the motor while using a continuous rated torque as an upper limit and a second driving mode for driving the motor while using a maximum rated torque as an upper limit, the continuous rated torque being lower than the maximum rated torque generatable by the motor. The motor controller drives the motor in the first driving mode in a case where a driver does not specify a driving mode.Type: GrantFiled: November 20, 2018Date of Patent: July 13, 2021Inventors: Fumiya Sato, Takeshi Yoneda
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Publication number: 20200307645Abstract: A vehicle control device includes a behavior instability acquirer, an automated driving advisability determination unit, and a switching time setting unit. The behavior instability acquirer acquires behavior instability of a vehicle. The automated driving advisability determination unit determines whether to continue automated driving on the condition that the vehicle is performing the automated driving. On the condition that the automated driving advisability determination unit determines that the automated driving is noncontinuable, the switching time setting unit determines switching time from the automated driving to manual driving on the basis of the behavior instability.Type: ApplicationFiled: February 20, 2020Publication date: October 1, 2020Applicant: SUBARU CORPORATIONInventors: Tsuyoshi YAMASAKI, Fumiya SATO, Hideyuki TAKAO
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Publication number: 20200310419Abstract: A vehicle control device includes a processor. The processor estimates a coefficient of friction on a road surface to be traveled by a vehicle. The processor determines whether to continue automated driving on the condition that the vehicle is performing the automated driving. On the condition that a determination is made that the automated driving is noncontinuable, the processor imposes a restriction on driving force of the vehicle in manual driving on the basis of a restrictive value derived from the coefficient of friction estimated.Type: ApplicationFiled: February 19, 2020Publication date: October 1, 2020Applicant: SUBARU CORPORATIONInventors: Fumiya SATO, Hideyuki TAKAO, Tsuyoshi YAMASAKI
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Publication number: 20190343605Abstract: In one mode of the present invention, a resin plate is manufactured by processing a resin disk using CAD/CAM, and an access hole for screw fixation is formed in the resin plate.Type: ApplicationFiled: December 12, 2017Publication date: November 14, 2019Inventors: Fumiya SATO, Takayuki MICHII, Takuya AKAGI